56779537 has 8 divisors (see below), whose sum is σ = 57359016. Its totient is φ = 56203392.

The previous prime is 56779529. The next prime is 56779561. The reversal of 56779537 is 73597765.

It can be written as a sum of positive squares in 4 ways, for example, as 22953681 + 33825856 = 4791^2 + 5816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56779537 - 2³ = 56779529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56779577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45283 + ... + 46519.

It is an arithmetic number, because the mean of its divisors is an integer number (7169877).

Almost surely, 2^56779537 is an apocalyptic number.

It is an amenable number.

56779537 is a deficient number, since it is larger than the sum of its proper divisors (579479).

56779537 is a wasteful number, since it uses less digits than its factorization.

56779537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667.

The product of its digits is 1389150, while the sum is 49.

The square root of 56779537 is about 7535.2197711812. The cubic root of 56779537 is about 384.3533012361.

The spelling of 56779537 in words is "fifty-six million, seven hundred seventy-nine thousand, five hundred thirty-seven".